The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2015
Filed:
Jul. 11, 2014
Applicants:
Soo Choong Chee, Shah Alam, MY;
Meng Kong Lye, Shah Alam, MY;
Wai Keong Wong, Shah Alam, MY;
Inventors:
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49555 (2013.01); H01L 23/49517 (2013.01);
Abstract
A lead frame for a semiconductor device has a die flag and leads that surround the die flag. In order to decrease the distance or spacing between inner lead ends and the die flag, which allows for short bond wires for connecting the inner lead ends to a die mounted on the die flag, at least some of the leads are twisted along their lengths to be angled with respect to a die-flag plane. The pitch between such twisted leads can be reduced without resulting in physical contact between adjacent leads, enabling the leads to extend further towards the die flag.